Forcing a failure for an execute SQL task - SSIS 2014-2016

Hi,

I'm trying to force manually a failure for an execute SQL task in order to trigger an OnError event managed with the related handler.

I've used a script task inside an OnProgress event handler by setting Dts.TaskResult to failure and also I've set the ForceExecutionResult to failure but in both cases unsuccessfully.

Now, how could I try the right behaviour about the OnError event handler of my execute SQL task?

Thanks